Hi Gerrit,
Gerrit Voß wrote:
> On Thu, 2009-06-18 at 11:12 +0800, Gerrit Voß wrote:
>> On Wed, 2009-06-17 at 21:44 -0500, Carsten Neumann wrote:
>>> The reason I think this also affects the new stuff is because it is
>>> before that actually gets a chance, i.e. the DrawEnv::activateState
>>> short circuits the state change before it gets to any infrastructure
>>> specific code. There is also a bug in SHLChunk::changeFrom, see the
>>> "Graph operators & OSG shader variables" thread on the users list for a
>>> patch.
>> unfortunately there is more wrong. My quick test gives me weird results
>> such as switched of lights where they should not. So I guess I have to
>> dig a little more ;)
>>
>
> ;), after fixing this the good news is, the new infrastructure actually
> does it right, because the overrides are different so the
> oldOver != newOver test succeeds and it goes to changeTo.
hm, why are the overrides different? Offhand that sounds a bit odd,
given that we are talking about two objects with same material.
> Actually
> to often for my liking so I see if I can get an early out for the
> case where only the shader params change.
>
> Sadly that does not really help us with the old OSG1 derived stuff ;(.
> One question though is is the compat stuff good enough so we can remove
> the original implementation and don't worry about it.
> Well worst case we can take out the test if the old shaders are active.
hm, ok.
Related to that: How about dropping the old stuff and only keeping the
compatibility layer of the new infrastructure? What is the difference
between the two - is renaming SHLChunk to SimpleSHLChunk everywhere
enough to convert an app?
I understand this does not help with the update problem, as you said the
compatibility layer is also affected, but it would reduce the number of
combinations that folks can build.
> Let's see where the early out takes us, maybe we can reuse some bits.
Let me know if I can help implement this, just tell me what your ideas
are and I'll see if I can come up with the right code ;)
Cheers,
Carsten
------------------------------------------------------------------------------
Crystal Reports - New Free Runtime and 30 Day Trial
Check out the new simplified licensing option that enables unlimited
royalty-free distribution of the report engine for externally facing
server and web deployment.
http://p.sf.net/sfu/businessobjects
_______________________________________________
Opensg-core mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/opensg-core
